Method for determining reference signal and communications device

ABSTRACT

A method for determining a reference signal and a communications device are provided. The method for determining a reference signal includes determining a target Reference Signal (RS) as a RS of a neighboring cell in a case that a first condition is met. The first condition includes any one of the following: first information includes related information of the neighboring cell; or related configuration information of a first object includes related information of the neighboring cell.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of International Application No.PCT/CN2021/075407, filed on Feb. 5, 2021, which claims priority toChinese Patent Application No. 202010089226.9 filed on Feb. 12, 2020.The entire contents of each of the above-referenced applications areexpressly incorporated herein by reference.

TECHNICAL FIELD

The present disclosure relates to the field of communicationstechnologies, and in particular to a method for determining a referencesignal and a communications device.

BACKGROUND

In the prior art, beam management and power control can be performedonly based on a Reference Signal (RS) of a current cell. In a scenarioof mobility or multiple Transmission Reception Points (TRPs), a networkusually intends to quickly use a RS of a neighboring cell. However, ifthe RS of the neighboring cell is to be used at present, cell handoverneeds to be performed first, which results in a long delay.

SUMMARY

Embodiments of the present disclosure provide a method for determining areference signal and a communications device.

The present disclosure is implemented as follows:

According to a first aspect, an embodiment of the present disclosureprovides a method for determining a reference signal, including:

determining a target RS as a RS of a neighboring cell in a case that afirst condition is met,

where the first condition includes at least one of the following:

first information includes related information of the neighboring cell;and

related configuration information of a first object includes relatedinformation of the neighboring cell.

According to a second aspect, an embodiment of the present disclosureprovides a communications device, including:

a first determining module, configured to determine a target RS as a RSof a neighboring cell in a case that a first condition is met,

where the first condition includes at least one of the following:

first information includes related information of the neighboring cell;and

related configuration information of a first object includes relatedinformation of the neighboring cell.

According to a third aspect, an embodiment of the present disclosureprovides a communications device, including a memory, a processor, and acomputer program that is stored in the memory and that can be on theprocessor, where when the computer program is executed by the processor,the steps of the method for determining a reference signal areimplemented. The communications device may be a terminal or a networkdevice.

According to a fourth aspect, an embodiment of the present disclosureprovides a computer readable storage medium which stores a computerprogram, where when the computer program is executed by a processor, thesteps of the method for determining a reference signal are implemented.

In the embodiments of the present disclosure, the target RS can bedetermined as the RS of the neighboring cell in a case that the firstcondition is met. Therefore, the RS of the neighboring cell can beobtained in a case that no cell handover is performed, so that a delaywhen the RS of the neighboring cell is obtained can be reduced. Further,when cross-cell beam management and power control are implemented, theRS of the neighboring cell can be quickly obtained, which effectivelyimproves system flexibility.

BRIEF DESCRIPTION OF DRAWINGS

The technical solutions of the embodiments of the present disclosure aredescribed together with accompanying drawings. The following brieflydescribes the accompanying drawings. Apparently, the accompanyingdrawings in the following description show merely some embodiments ofthe present disclosure, and a person of ordinary skill in the art maystill derive other drawings from these accompanying drawings withoutcreative efforts.

FIG. 1 is a flowchart of a method for determining a reference signalaccording to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a communications deviceaccording to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a terminal according to anembodiment of the present disclosure; and

FIG. 4 is a schematic structural diagram of a network device accordingto an embodiment of the present disclosure.

DETAILED DESCRIPTION

The technical solutions of the embodiments of the present disclosure aredescribed together with the accompanying drawings. The following brieflydescribes the accompanying drawings. Apparently, the accompanyingdrawings in the following description show merely some embodiments ofthe present disclosure, and a person of ordinary skill in the art maystill derive other drawings from these accompanying drawings withoutcreative efforts.

The term “include” and any other variants in the specification andclaims of this application mean to cover the non-exclusive inclusion,for example, a process, method, system, product, or device that includesa list of steps or units is not necessarily limited to those steps orunits, but may include other steps or units not expressly listed orinherent to such a process, method, product, or device. In addition,“and/or” used in the description and the claims means at least one ofthe connected objects. For example, A and/or B represents the followingthree cases: only A exists, only B exists, and both A and B exist.

It should be noted that a method for determining a reference signal anda communications device provided in the embodiments of the presentdisclosure may be applied to a wireless communications system. Thewireless communications system may be a 5G system, a Long Term Evolution(LTE)/LTE-Advanced (LTE-A) system, or a subsequent evolutioncommunications system.

The wireless communications system in the embodiments of the presentdisclosure includes a terminal and a network device. The terminal mayalso be referred to as a terminal device or User Equipment (UE). Theterminal may be a terminal side device such as a mobile phone, a tabletpersonal computer, a laptop computer, a Personal Digital Assistant(PDA), a Mobile Internet Device (MID), a wearable device, or anin-vehicle device. It should be noted that a specific type of theterminal is not limited in embodiments of the present disclosure. Thenetwork device may be a base station or a core network. The base stationmay be a base station of 5G and later versions (for example, a gNB and a5G NRNB), or a base station in other communications systems (forexample, an eNB, a WLAN access point, or other access points). The basestation may be referred to as a NodeB, an evolved NodeB, an accesspoint, a Base Transceiver Station (BTS), a radio base station, a radiotransceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), aNodeB, an evolved NodeB (eNB), a home NodeB, a home evolved NodeB, aWLAN access point, a Wi-Fi node, or other appropriate terms in the art.Provided that the same technical effects are achieved, the base stationis not limited to specific technical vocabulary.

Referring to FIG. 1 , FIG. 1 is a flowchart of a method for determininga reference signal according to an embodiment of the present disclosure.The method is applied to a communications device, and the communicationsdevice may be a terminal or a network device. As shown in FIG. 1 , themethod includes the following step.

Step 101: Determine a target RS as a RS of a neighboring cell in a casethat a first condition is met.

In some embodiments, the first condition may include any one of thefollowing:

first information includes related information of the neighboring cell;and

related configuration information of a first object includes relatedinformation of the neighboring cell.

In this embodiment of the present disclosure, the target RS can bedetermined as the RS of the neighboring cell in a case that the firstcondition is met. Therefore, the RS of the neighboring cell can beobtained in a case that no cell handover is performed, so that a delaywhen the RS of the neighboring cell is obtained can be reduced. Further,when cross-cell beam management and power control are implemented, theRS of the neighboring cell can be quickly obtained, which effectivelyimproves system flexibility.

In some embodiments, the related information of the neighboring cell mayinclude at least one of the following:

an identifier (ID) of the neighboring cell;

ID-related information of the neighboring cell; or

information indicating the neighboring cell.

For example, the ID of the neighboring cell is a Physical Cell Index(PCI). The information indicating the neighboring cell is, for example,the ID indicating the neighboring cell. The ID indicating theneighboring cell can be determined by network high-layer signaling, suchas Radio Resource Control (RRC) signaling or a Media Access ControlControl Element (MAC CE), and the ID is associated with the neighboringcell.

In some embodiments, the RS of the neighboring cell may include at leastone of the following:

a Synchronization Signal Block (Synchronization Signal and PBCH block,SSB), a Channel State Information-Reference Signal (CSI-RS), or achannel Sounding Reference Signal (SRS).

In this embodiment of the present disclosure, for example, the firstcondition is that the first information includes the related informationof the neighboring cell, and the first information can be selected fromthe following.

(1) The first information may include at least one of Quasi-CoLocation(QCL) information and spatial relation information. Correspondingly, thetarget RS includes at least one of the following: a RS in the QCLinformation and a RS in the spatial relation information.

For example, if the ID of the neighboring cell (the ID-relatedinformation of the neighboring cell, or the information indicating theneighboring cell) is configured in the QCL information, the RS in theQCL information is the RS of the neighboring cell.

For another example, if the ID of the neighboring cell (the ID-relatedinformation of the neighboring cell, or the information indicating theneighboring cell) is configured in the spatial relation information, theRS in the spatial relation information is the RS of the neighboringcell.

For still another example, if the ID of the neighboring cell (theID-related information of the neighboring cell or the informationindicating the neighboring cell) is configured in the QCL informationand the spatial relation information, the RS in the QCL information andthe spatial relation information is the RS of the neighboring cell.

(2) The first information is Transmission Configuration Indication (TCI)information. Correspondingly, the target RS is a RS in QCL informationof the TCI information.

For example, if the ID of the neighboring cell (the ID-relatedinformation of the neighboring cell or the information indicating theneighboring cell) is configured in the TCI information, the RS in theQCL information of the TCI information is the RS of the neighboringcell.

In this embodiment of the present disclosure, for example, the firstcondition is that the related configuration information of the firstobject includes the related information of the neighboring cell, and thefirst object may include one of the following situations

(a) The first object may include at least one of the following: aPhysical Downlink Control Channel (PDCCH), a Physical Downlink SharedChannel (PDSCH), a SSB, a CSI-RS, a Physical Uplink Control Channel(PUCCH), a Physical Uplink Shared Channel (PUSCH), or a SRS.Correspondingly, the target RS may include at least one of thefollowing: a RS in QCL information of the first object, a RS in TCIinformation of the first object, or a RS in spatial relation informationof the first object.

In some embodiments, the related information of the neighboring cell isnot required to be configured in the QCL information of the firstobject, such as the ID of the neighboring cell, the ID-relatedinformation of the neighboring cell, and/or the information indicatingthe neighboring cell. In some embodiments, the related information ofthe neighboring cell is not required to be configured in the TCIinformation of the first object, such as the ID of the neighboring cell,the ID-related information of the neighboring cell, and/or theinformation indicating the neighboring cell. In some embodiments, therelated information of the neighboring cell is not required to beconfigured in the spatial relation information of the first object, suchas the ID of the neighboring cell, the ID-related information of theneighboring cell, and/or the information indicating the neighboringcell.

For example, taking the PDCCH as an example, if the ID of theneighboring cell (or the ID-related information of the neighboring cellor the information indicating the neighboring cell) is configured inrelated configuration information of the PDCCH, a RS in QCL information,TCI information, and/or in spatial relation information of the PDCCH isthe RS of the neighboring cell, that is, a RS of a neighboring cellassociated with or indicated by the PDCCH. The related configurationinformation of the PDCCH may be: PDCCH configuration (PDCCH-Config),PDCCH common configuration (PDCCH-ConfigCommon), and configurationinformation associated with the PDCCH.

For example, taking the PDSCH as an example, if the ID of theneighboring cell (or the ID-related information of the neighboring cellor the information indicating the neighboring cell) is configured inrelated configuration information of the PDSCH, a RS in QCL information,TCI information, and/or spatial relation information of the PDSCH is theRS of the neighboring cell, that is, a RS of a neighboring cellassociated with or indicated by the PDSCH. The related configurationinformation of the PDSCH may be: PDSCH configuration (PDSCH-Config),PDSCH common configuration (PDSCH-ConfigCommon), and configurationinformation associated with the PDSCH.

For another example, taking a downlink RS (such as a SSB or CSI-RS) asan example, if the ID of the neighboring cell (or the ID-relatedinformation of the neighboring cell or the information indicating theneighboring cell) is configured in related configuration information ofthe downlink RS, a RS in QCL information, TCI information, and/orspatial relation information of the downlink RS is the RS of theneighboring cell, that is, a RS of the neighboring cell associated withor indicated by the downlink RS. Related configuration information ofthe downlink RS may be: CSI measurement configuration (CSI-MeasConfig),CSI report configuration (CSI-ReportConfig), CSI resource configuration(CSI-ResourceConfig), a NZP-CSI-RS resource set (NZP-CSI-RS-ResourceSet), a NZP-CSI-RS resource (NZP-CSI-RS-Resource), a CSI-SSB resourceset (CSI-SSB-ResourceSet), or configuration information associated withthe downlink RS.

For still another example, taking the PUCCH as an example, if the ID ofthe neighboring cell (or the ID-related information of the neighboringcell or the information indicating the neighboring cell) is configuredin related configuration information of the PUCCH, a RS in QCLinformation, TCI information, and/or spatial relation information of thePUCCH is the RS of the neighboring cell, that is, the RS of theneighboring cell associated with or indicated by the PUCCH. Relatedconfiguration information of the PUCCH may be: PUCCH configuration(PUCCH-Config), PUCCH common configuration (PUCCH-ConfigCommon), PUCCHspatial relationship information (PUCCH-SpatialRelationInfo), PUCCHpower control (PUCCH-PowerControl), and configuration informationassociated with the PUCCH.

For yet another example, taking the PUSCH as an example, if the ID ofthe neighboring cell (or the ID-related information of the neighboringcell or the information indicating the neighboring cell) is configuredin related configuration information of the PUSCH, a RS in QCLinformation, TCI information, and/or spatial relation information of thePUSCH is the RS of the neighboring cell, that is, a RS of a neighboringcell associated with or indicated by the PUSCH. Related configurationinformation of the PUSCH can be: PUSCH configuration (PUSCH-Config),PUSCH common configuration (PUSCH-ConfigCommon), PUSCH serving cellconfiguration (PUSCH-ServingCellConfig), PUSCH power control(PUSCH-PowerControl), PUSCH path loss calculation reference RS(PUSCH-PathlossReferenceRS), SRI-PUSCH power control(SRI-PUSCH-PowerControl), and configuration information associated withthe PUSCH.

For still yet another example, taking the SRS as an example, if the IDof the neighboring cell (or the ID-related information of theneighboring cell or the information indicating the neighboring cell) isconfigured in related configuration information of the SRS, a RS in QCLinformation, TCI information, and/or spatial relation information of theSRS is the RS of the neighboring cell, that is, a RS of a neighboringcell associated with or indicated by the SRS. Related configurationinformation of the SRS can be: SRS configuration (SRS-Config), a SRSresource set (SRS-Resource Set), a SRS resource (SRS-Resource), SRSspatial relation information (SRS-SpatialRelationInfo), a path losscalculation reference RS (pathlossReferenceRS), and configurationinformation associated with the SRS.

(b) The first object may include at least one of the following: thePUCCH, PUSCH, SRS, or a Physical Random Access Channel (PRACH).Correspondingly, the target RS is a Path Loss calculation referenceReference Signal (PL RS) of the first object.

In some embodiments, the related information of the neighboring cell isnot required to be configured in the PL RS of the first object and apower control parameter associated with the PL S of the first object,such as the ID of the neighboring cell, the ID-related information ofthe neighboring cell, and/or the information indicating the neighboringcell.

For example, taking the PUCCH as an example, if the ID of theneighboring cell (or the ID-related information of the neighboring cellor the information indicating the neighboring cell) is configured inrelated configuration information of the PUCCH, a PL RS of the PUCCH isthe RS of the neighboring cell, that is, a RS of a neighboring cellassociated with or indicated by the PUCCH. The related configurationinformation of the PUCCH may be: PUCCH configuration (PUCCH-Config),PUCCH common configuration (PUCCH-ConfigCommon), PUCCH spatial relationinformation (PUCCH-SpatialRelationInfo), PUCCH power control(PUCCH-PowerControl), a PUCCH-path loss calculation reference RS(PUCCH-PathlossReferenceRS), and configuration information associatedwith the PUCCH.

For another example, taking the PUSCH as an example, if the ID of theneighboring cell (or the ID-related information of the neighboring cellor the information indicating the neighboring cell) is configured inrelated configuration information of the PUSCH, a PL RS of the PUSCH isthe RS of the neighboring cell, that is, a RS of a neighboring cellassociated with or indicated by the PUSCH. Related configurationinformation of the PUSCH can be: PUSCH configuration (PUSCH-Config),PUSCH common configuration (PUSCH-ConfigCommon), PUSCH serving cellconfiguration (PUSCH-ServingCellConfig), PUSCH power control(PUSCH-PowerControl), PUSCH path loss calculation reference RS(PUSCH-PathlossReferenceRS), SRI-PUSCH power control(SRI-PUSCH-PowerControl), and configuration information associated withthe PUSCH.

For still another example, taking the SRS as an example, if the ID ofthe neighboring cell (or the ID-related information of the neighboringcell or the information indicating the neighboring cell) is configuredin related configuration information of the SRS, a PL RS of the SRS isthe RS of the neighboring cell, that is, a RS of a neighboring cellassociated with or indicated by the SRS. Related configurationinformation of the SRS can be: SRS configuration (SRS-Config), a SRSresource set (SRS-ResourceSet), a SRS resource (SRS-Resource), SRSspatial relation information (SRS-SpatialRelationInfo), a path losscalculation reference RS (pathlossReferenceRS), and configurationinformation associated with the SRS.

For yet another example, taking the PRACH as an example, if the ID ofthe neighboring cell (or the ID-related information of the neighboringcell or the information indicating the neighboring cell) is configuredin related configuration information of the PRACH, a PL RS of the PRACHis the RS of the neighboring cell, that is, a RS of a neighboring cellassociated with or indicated by the PRACH. Related configurationinformation of the PRACH may be: random access channel commonconfiguration (RACH-ConfigCommon), random access channel dedicatedconfiguration (RACH-ConfigDedicated), random access channel generalconfiguration (RACH-ConfigGeneric), and configuration informationassociated with the PRACH.

(c) The first object is at least one of a target object set. The targetobject set includes at least one of the following: a PDCCH, PDSCH, SSB,CSI-RS, PUCCH, PUSCH, SRS, or PRACH. Correspondingly, the target RSincludes at least one of the following: a RS in QCL information of asecond object, a RS in TCI information of a second object, a RS inspatial relation information of a second object, or a PL RS of a secondobject. The second object is associated with the first object.

In an implementation manner, the second object may be an objectassociated with the first object in the target object set.

In an implementation manner, that the second object is associated withthe first object is that the first object schedules the second object.

For example, the first object is the PDCCH, and the second object is thePDSCH, PUCCH, PUSCH, SRS, and PRACH, and then that the first object isassociated with the second object may be that the PDCCH schedules thePDSCH, the PUSCH, and the PRACH, and the PUCCH is associated with thePDSCH and the PUSCH.

For another example, a PDCCH resource is associated with the neighboringcell (that is, related information of the neighboring cell is configuredin related configuration information of the PDCCH), and then a RS in QCLinformation, TCI information, spatial relation information, and/or a PLRS of the PDSCH, PUCCH, PUSCH, SRS, and PRACH associated with the PDCCHis a RS of the associated/indicated neighboring cell. In someembodiments, the related information of the neighboring cell, such asthe ID of the neighboring cell, the ID-related information of theneighboring cell, and/or the information indicating the neighboringcell, is not required to be configured in the QCL information, TCIinformation, and spatial relation information of the PDSCH, PUCCH,PUSCH, SRS, and PRACH associated with the PDCCH.

For still another example, a SSB (or CSI-RS, or SRS) is associated withthe neighboring cell, for a RS in QCL information, TCI information,spatial relation information, and/or PL RS of some channels or signals(such as at least one of the PDCCH, PDSCH, SSB, CSI-RS, PUCCH, PUSCH,SRS, or PRACH), a RS in the QCL information, TCI information, spatialrelation information, and/or the rest of the PL RS of these signals orchannels are also a RS of the associated or indicated neighboring cell.In some embodiments, related information of the neighboring cell is notrequired to be configured in the QCL information, TCI information,spatial relation information, and/or PL RS of these channels or signals,such as the ID of the neighboring cell, the ID-related information ofthe neighboring cell, and/or information indicating the neighboringcell.

In this embodiment of the present disclosure, in addition to theforegoing manner for determining the RS of the neighboring cell, the RSof the neighboring cell may be further determined based on a default RS.In some embodiments, the method may further include:

determining at least one of the following as the RS of the neighboringcell:

a RS in a list configured by a network device or reported by a terminal;and

a measured RS of the neighboring cell, for example, the measured RS ofthe neighboring cell may be a RS of the neighboring cell to be measuredby the terminal.

In an exemplary implementation manner, the measured RS of theneighboring cell may be a measured RS of the neighboring cell reportedby the terminal.

This way, the RS of the neighboring cell is determined based on thedefault RS, so that signaling overheads and a communication delay can befurther reduced.

In an implementation manner, after the network device configures or theterminal reports the list, the RS in the list is the RS of theneighboring cell. When the RS of the neighboring cell is usedsubsequently, the related information of the neighboring cell is notrequired to be carried in the related configuration information, such asthe ID of the neighboring cell, the ID-related information of theneighboring cell, and/or the information indicating the neighboringcell.

In another implementation manner, if the ID of the neighboring cell (orthe ID-related information of the neighboring cell, or the informationindicating the neighboring cell) is configured in related configurationinformation of at least one of the PDCCH, PDSCH, SSB, CSI-RS, PUCCH,PUSCH, SRS, or PRACH, but no RS is configured in its QCL information,TCI information, spatial relation information, and/or PL RS, thereported measured RS of the neighboring cell may be used.

In some embodiments, if multiple measured RSs exist in the neighboringcell, the measured RSs of the neighboring cell meet at least one of thefollowing:

the multiple measured RSs have the best quality, for example, the bestquality may be the best Reference Signal Received Power (RSRP), the bestReference Signal Received Quality (RSRQ), or the best Signal toInterference plus Noise Ratio (SINR);

the multiple measured RSs have the largest ID or the smallest ID;

the multiple measured RSs have the highest priority, for example, theSSB has the highest priority, the CSI-RS has the highest priority, orthe SRS has the highest priority; or

the multiple measured RSs are selected by the terminal or indicated bythe network device.

In some embodiments, the foregoing report may be at least one of thefollowing: a beam report, a Radio Resource Management (RRM) report, or aRadio Link Monitoring (RLM) report.

In some embodiments, the foregoing measured RS may be a measured RS inthe neighboring cell.

In this embodiment of the present disclosure, the manner for determiningthe target RS as the RS of the neighboring cell can be agreed in aprotocol, or configured by the network device, for example, configuredthrough high-layer signaling.

Further, the determining the target RS as the RS of the neighboring cellmay be activated through signaling from the network device. That is, thenetwork device can issue signaling to the terminal, so that the terminalcan know that the foregoing target RS (for example, the RS in the QCLinformation, the RS in the spatial relation information, or the PL RS)is the RS of the neighboring cell, otherwise, the target RS may be a RSof a current cell. After the network device issues the signaling, theforegoing target RS (such as the RS in the QCL information, the RS inthe spatial relation information, or the PL RS) can be also determinedas the RS of the neighboring cell, otherwise, the target RS may be theRS of the current cell.

In some embodiments, the signaling issued by the network device may besignaling used to indicate inter-cell Multi-TRP and related signaling.Configuration information of a control resource set (CORESET) belongingto a TRP ID and its associated information may include the ID of theneighboring cell. In some embodiments, the TRP ID may beCORESETPoolIndex.

In an implementation manner, a PCI, PCI-related information, a cell ID,or cell ID-related information of the neighboring cell, or a TRP ID orTRP ID-related information of another TRP can be activated or updatedwhen the network device issues the signaling. Signaling in which theID-related information is located may be at least one of the following.

(1) High-layer signaling: for example, cell group configuration(CellGroupConfig), secondary cell configuration (SpCellConfig),reconfiguration with synchronization (ReconfigurationWithSync), servingcell common configuration (ServingCellConfigCommon), serving cellconfiguration (ServingCellConfig), and associated signaling;

(2) Physical-layer signaling: for example, CSI measurement configuration(CSI-MeasConfig), CSI report configuration (CSI-ReportConfig), CSIresource configuration (CSI-ResourceConfig), a NZP-CSI-RS resource set(NZP-CSI-RS-ResourceSet), a NZP-CSI-RS resource (NZP-CSI-RS-Resource), aCSI-SSB resource set (CSI-SSB-ResourceSet), SRS configuration(SRS-Config), a SRS resource set (SRS-ResourceSet), a SRS Resource(SRS-Resource), PDCCH configuration (PDCCH-Config), PDSCH configuration(PDSCH-Config), PUCCH configuration (PUCCH-Config), PUSCH configuration(PUSCH-Config), and associated signaling

Referring to FIG. 2 , FIG. 2 is a schematic structural diagram of acommunications device according to an embodiment of the presentdisclosure. The communications device may be a terminal or a networkdevice. As shown in FIG. 2 , the communications device 20 includes:

a first determining module 21, configured to determine a target RS as aRS of a neighboring cell in a case that a first condition is met.

The first condition includes at least one of the following:

first information includes related information of the neighboring cell;and

related configuration information of a first object includes relatedinformation of the neighboring cell.

In some embodiments, the first information includes at least one of QCLinformation and spatial relation information; and

the target RS includes at least one of the following: a RS in the QCLinformation and a RS in the spatial relation information.

In some embodiments, the first information is TCI information; and

the target RS is a RS in QCL information of the TCI information.

In some embodiments, the first object includes at least one of thefollowing: a PDCCH, PDSCH, SSB, CSI-RS, PUCCH, PUSCH, or SRS; and

the target RS includes at least one of the following: a RS in QCLinformation of the first object, a RS in TCI information of the firstobject, or a RS in spatial relation information of the first object.

In some embodiments, the first object includes at least one of thefollowing: a PUCCH, PUSCH, SRS, or PRACH; and the target RS is a PL RSof the first object.

In some embodiments, the first object is at least one of a target objectset, and the target object set includes the following: a PDCCH, PDSCH,SSB, CSI-RS, PUCCH, PUSCH, SRS, and PRACH; and

the target RS includes at least one of the following: a RS in QCLinformation of a second object, a RS in TCI information of a secondobject, a RS in spatial relation information of a second object, or a PLRS of a second object.

The second object is associated with the first object. In someembodiments, the method further includes:

a second determining module, configured to determine at least one of thefollowing as the RS of the neighboring cell:

a RS in a list configured by a network device or reported by a terminal;and

a measured RS of the neighboring cell.

In some embodiments, if multiple measured RSs exist in the neighboringcell, the measured RSs of the neighboring cell meet at least one of thefollowing:

the multiple measured RSs have the best quality;

the multiple measured RSs have the largest ID or the smallest ID;

the multiple measured RSs have the highest priority; or

the multiple measured RSs are selected by the terminal or indicated bythe network device.

In some embodiments, the related information of the neighboring cellincludes at least one of the following:

an ID of the neighboring cell;

ID-related information of the neighboring cell; or

information indicating the neighboring cell.

In some embodiments, the RS of the neighboring cell includes at leastone of the following:

an SSB, CSI-RS, or SRS.

In some embodiments, the determining the target RS as the RS of theneighboring cell is activated through signaling from the network device.

The communications device 20 provided according to the embodiments ofthe present disclosure can implement processes implemented in the methodembodiment shown in FIG. 1 , and a same effect can be achieved. To avoidrepetition, details are not described herein again.

An embodiment of the present disclosure further provides acommunications device, including a processor, a memory, and a computerprogram that is stored in the memory and that can be run on theprocessor, where when the computer program is executed by the processor,each process of the method embodiment shown in FIG. 1 can beimplemented, and a same effect can be achieved. To avoid repetition,details are not described herein again. In some embodiments, thecommunications device may be a terminal or a network device.

FIG. 3 is a schematic diagram of a hardware structure of a terminal forimplementing the embodiments of the present disclosure. The terminal 300includes but is not limited to components such as a radio frequency unit301, a network module 302, an audio output unit 303, an input unit 304,a sensor 305, a display unit 306, a user input unit 307, an interfaceunit 308, a memory 309, a processor 310, and a power supply 311. Aperson skilled in the art may understand that a structure of theterminal shown in FIG. 3 does not constitute a limitation on theterminal, and the terminal may include more or fewer components thanthose shown in the figure, or combine some components, or have differentcomponent arrangements. In this embodiment of the present disclosure,the terminal includes but is not limited to a mobile phone, a tabletcomputer, a laptop computer, a palmtop computer, an in-vehicle terminal,a wearable device, a pedometer, and the like.

The processor 310 is configured to: determine a target RS as a RS of aneighboring cell in a case that a first condition is met. The firstcondition includes any one of the following: first information includesrelated information of the neighboring cell, and related configurationinformation of a first object includes related information of theneighboring cell.

The terminal 300 provided according to the embodiments of the presentdisclosure may implement processes implemented in the method embodimentshown in FIG. 1 , and a same effect can be achieved. To avoidrepetition, details are not described herein again.

It should be understood that in this embodiment of the presentdisclosure, the radio frequency unit 301 may be configured to receiveand transmit information, or receive and transmit signals during a call.In some embodiments, the radio frequency unit transmits downlink data tothe processor 310 for processing after receiving the downlink data froma base station; and transmits uplink data to the base station. Usually,the radio frequency unit 301 includes but is not limited to an antenna,at least one amplifier, a transceiver, a coupler, a low noise amplifier,a duplexer, and the like. In addition, the radio frequency unit 301 maycommunicate with a network and another device through a wirelesscommunication system.

The terminal provides wireless broadband Internet access to a userthrough the network module 302, for example, helps the user receive andsend e-mails, browse web pages, access streaming media, and the like.

The audio output unit 303 may convert audio data received by the radiofrequency unit 301 or the network module 302 or stored in the memory 309into an audio signal and output the audio signal as a sound. Inaddition, the audio output unit 303 may further provide an audio output(for example, a call signal received voice, or a message received voice)related to a specific function implemented by the terminal 300. Theaudio output unit 303 includes a loudspeaker, a buzzer, a telephonereceiver, and the like.

The input unit 304 is configured to receive an audio signal or a videosignal. The input unit 304 may include a Graphics Processing Unit (GPU)3041 and a microphone 3042. The graphics processing unit 3041 is used toprocess image data of a static picture or a video obtained by an imagecapturing device (for example, a camera) in a video capturing mode or animage capturing mode. A processed image frame may be displayed on thedisplay unit 306. The image frame processed by the graphics processingunit 3041 may be stored in the memory 309 (or another storage medium) orsent by using the radio frequency unit 301 or the network module 302.The microphone 3042 may receive sound and can process such sound intoaudio data. The processed audio data may be converted in a call modeinto a format that can be sent by the radio frequency unit 301 to amobile communication base station for outputting.

The terminal 300 further includes at least one sensor 305, for example,a light sensor, a motion sensor, and another sensor. In someembodiments, the light sensor includes an ambient light sensor and aproximity sensor. The ambient light sensor may adjust luminance of thedisplay panel 3061 based on brightness of ambient light. The proximitysensor may turn off the display panel 3061 and/or backlight when theterminal 300 is moved to an ear. As a type of the motion sensor, anaccelerometer sensor can detect magnitude of acceleration in eachdirection (generally, on three axes), and may detect magnitude and adirection of gravity when being static. The accelerometer sensor may beused for recognizing a terminal gesture (for example, portrait andlandscape orientation switching, a related game, or magnetometer posturecalibration), a function related to vibration recognition (for example,a pedometer or a strike), or the like. The sensor 305 may furtherinclude a fingerprint sensor, a pressure sensor, an iris sensor, amolecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer,an infrared sensor, and the like. Details are not described herein.

The display unit 306 is configured to display information input by auser or information provided for a user. The display unit 306 mayinclude the display panel 3061, and the display panel 3061 may beconfigured in a form of a Liquid Crystal Display (LCD), an OrganicLight-Emitting Diode (OLED), or the like.

The user input unit 307 may be configured to receive input digit orcharacter information and generate key signal input related to usersetting and function control of the terminal. In some embodiments, theuser input unit 307 includes a touch panel 3071 and another input device3072. The touch panel 3071 is also referred to as a touchscreen, and maycollect a touch operation performed by a user on or near the touch panel3071 (for example, an operation performed by a user on or near the touchpanel 3071 by using any proper object or accessory, for example, afinger or a stylus). The touch panel 3071 may include two parts: a touchdetection apparatus and a touch controller. The touch detectionapparatus detects a touch location of the user, detects a signal broughtby the touch operation, and sends the signal to the touch controller.The touch controller receives touch information from the touch detectionapparatus, converts the touch information into touch point coordinates,sends the touch point coordinates to the processor 310, and receives andexecutes a command sent by the processor 310. In addition, the touchpanel 3071 may be implemented as a resistive type, a capacitive type, aninfrared type, a surface acoustic wave type, or the like. The user inputunit 307 may include other input devices 3072 in addition to the touchpanel 3071. In some embodiments, the another input device 3072 mayinclude but is not limited to: a physical keyboard, function keys (forexample, a volume control key and an on/off key), a trackball, a mouse,or a joystick. Details are not described herein.

Further, the touch panel 3071 may cover the display panel 3061. Whendetecting the touch operation on or near the touch panel 3071, the touchpanel 3071 transmits the touch operation to the processor 310 todetermine a type of a touch event, and then the processor 310 providescorresponding visual output on the display panel 3061 based on the typeof the touch event. In FIG. 3 , the touch panel 3071 and the displaypanel 3061 are used as two independent components to implement input andoutput functions of the terminal. However, in some embodiments, thetouch panel 3071 and the display panel 3061 may be integrated toimplement the input and output functions of the terminal. This is notspecifically limited herein.

The interface unit 308 is an interface connecting an external apparatusto the terminal 300. For example, the external apparatus may include awired or wireless headset port, an external power supply (or a batterycharger) port, a wired or wireless data port, a memory card port, a portfor connecting an apparatus having an identification module, an audioinput/output (I/O) port, a video I/O port, an earphone port, and thelike. The interface unit 308 may be configured to receive input (forexample, data information and power) from the external apparatus andtransmit the received input to one or more elements in the terminal 300,or may be configured to transmit data between the terminal 300 and theexternal apparatus.

The memory 309 may be configured to store a software program and variouspieces of data. The memory 309 may mainly include a program storage areaand a data storage area. The program storage area may store an operatingsystem, an application program required by at least one function (forexample, a sound play function or an image display function), and thelike. The data storage area may store data (for example, audio data oran address book) or the like created based on use of a mobile phone. Inaddition, the memory 309 may include a high-speed random access memory,and may further include a nonvolatile memory, for example, at least onemagnetic disk storage device, a flash storage device, or anothervolatile solid-state storage device.

The processor 310 is a control center of the terminal, and connects allparts of the entire terminal by using various interfaces and lines. Byrunning or executing a software program and/or a module stored in thememory 309 and invoking data stored in the memory 309, the processorperforms various functions of the terminal and data processing, toperform overall monitoring on the terminal. The processor 310 mayinclude one or more processing units. In some embodiments, the processor310 may be integrated with an application processor and a modemprocessor. The application processor mainly processes an operatingsystem, a user interface, an application program, and the like. Themodem processor mainly processes wireless communication. It can beunderstood that the modem processor may not be integrated into theprocessor 310.

The terminal 300 may further include a power supply 311 (such as abattery) that supplies power to each component. In some embodiments, thepower supply 311 may be logically connected to the processor 310 byusing a power management system, to implement functions such ascharging, discharging, and power consumption management by using thepower management system.

In addition, the terminal 300 may further include some function modulesnot shown, and details are not described herein.

Referring to FIG. 4 , FIG. 4 is a schematic diagram of a hardwarestructure of a network device for implementing the embodiments of thepresent disclosure. The network device 40 includes but is not limited toa bus 41, a transceiver 42, an antenna 43, a bus interface 44, aprocessor 45, and a memory 46.

In this embodiment of the present disclosure, the network device 40further includes a computer program that is stored in the memory 46 andthat can be run on the processor 45, where when the computer program isexecuted by the processor 45, the following steps are implemented:

determining a target RS as a RS of a neighboring cell in a case that afirst condition is met.

The first condition includes at least one of the following:

first information includes related information of the neighboring cell;and

related configuration information of a first object includes relatedinformation of the neighboring cell.

The transceiver 42 is configured to receive and send data under thecontrol of the processor 45.

The network device 40 provided according to the embodiments of thepresent disclosure may implement various processes implemented by themethod embodiment shown in FIG. 1 , and a same effect can be achieved.To avoid repetition, details are not described herein again.

In FIG. 4 , for a bus architecture (represented by a bus 41), the bus 41may include any quantity of interconnecting buses and bridges, and thebus 41 interconnects various circuits of one or more processorsrepresented by the processor 45 and a memory represented by a memory 46.The bus 41 may further link together various other circuits, such as aperipheral device, a voltage regulator, and a power management circuit.These are all well known in the art. Therefore, this specificationprovides no further description. The bus interface 44 provides aninterface between the bus 41 and the transceiver 42. The transceiver 42may be one component or may be multiple components, for example,multiple receivers and transmitters, and provide a unit that isconfigured to communicate with various other apparatuses on atransmission medium. Data processed by the processor 45 is transmittedon a wireless medium by using the antenna 43. Further, the antenna 43further receives data and transmits the data to the processor 45.

The processor 45 is responsible for managing the bus 41 and generalprocessing, and may further provide various functions, including timing,peripheral interfacing, voltage regulation, power management, andanother control function. The memory 46 may be configured to store dataused by the processor 45 when performing an operation.

An embodiment of the present disclosure further provides acomputer-readable storage medium. The computer-readable storage mediumstores a computer program, and when a processor executes the computerprogram, each process in the method embodiment shown in FIG. 1 can beimplemented, and a same technical effect can be achieved. To avoidrepetition, details are not described herein again. Thecomputer-readable storage medium is, for example, a Read-Only Memory(ROM), a Random Access Memory (RAM), a magnetic disk, an optical disc,or the like.

It should be noted that, in this specification, the terms “include”,“comprise”, or any of their variants are intended to cover anon-exclusive inclusion, such that a process, a method, an article, oran apparatus that includes a list of elements not only includes thoseelements but also includes other elements that are not expressly listed,or further includes elements inherent to such process, method, article,or apparatus. In the absence of more restrictions, an element defined bythe statement “including a . . . ” does not preclude the presence ofother identical elements in the process, method, article, or apparatusthat includes the element.

By means of the foregoing description of the embodiments, a personskilled in the art may clearly understand that the method in theforegoing embodiments may be implemented by software in addition to anecessary universal hardware platform. The method in the foregoingembodiments may also be implemented by hardware. However, in many cases,the former is an embodiment. Based on such understanding, the technicalsolutions of the present disclosure essentially or the part contributingto the prior art may be implemented in a form of a software product. Thecomputer software product is stored in a storage medium (such as aROM/RAM, a magnetic disk, or an optical disc), and includes severalinstructions for instructing a terminal (which may be a mobile phone, acomputer, a server, an air conditioner, a network device, or the like)to perform the method described in the embodiments of the presentdisclosure.

The embodiments of the present disclosure are described above withreference to the accompanying drawings, but the present disclosure isnot limited to the foregoing specific implementation manners. Theforegoing specific implementation manners are merely exemplary insteadof restrictive. Under enlightenment of the present disclosure, a personof ordinary skill in the art may make many forms without departing fromthe objective of the present disclosure and the protection scope ofclaims, all of which fall within the protection of the presentdisclosure.

1. A method for determining a reference signal, comprising: determininga target Reference Signal (RS) as a RS of a neighboring cell in a casethat a first condition is met, wherein the first condition comprises atleast one of the following: first information comprises relatedinformation of the neighboring cell; or related configurationinformation of a first object comprises related information of theneighboring cell.
 2. The method according to claim 1, wherein the firstinformation comprises at least one of Quasi-CoLocation (QCL) informationand spatial relation information; and the target RS comprises at leastone of the following: a RS in the QCL information or a RS in the spatialrelation information.
 3. The method according to claim 1, wherein thefirst information is Transmission Configuration Indication (TCI)information; and the target RS is a RS in QCL information of the TCIinformation.
 4. The method according to claim 1, wherein the firstobject comprises at least one of the following: a Physical DownlinkControl Channel (PDCCH), a Physical Downlink Shared Channel (PDSCH), aSynchronization Signal Block (SSB), a Channel StateInformation-Reference Signal (CSI-RS), a Physical Uplink Control Channel(PUCCH), a Physical Uplink Shared Channel (PUSCH), or a channel SoundingReference Signal (SRS); and the target RS comprises at least one of thefollowing: a RS in QCL information of the first object, a RS in TCIinformation of the first object, or a RS in spatial relation informationof the first object.
 5. The method according to claim 1, wherein thefirst object comprises at least one of the following: a PUCCH, PUSCH,SRS, or Physical Random Access Channel (PRACH); or the target RS is aPath Loss calculation reference Reference Signal (PL RS) of the firstobject.
 6. The method according to claim 1, wherein the first object isat least one of a target object set, wherein the target object setcomprises the following: a PDCCH, PDSCH, SSB, CSI-RS, PUCCH, PUSCH, SRS,or PRACH; and the target RS comprises at least one of the following: aRS in QCL information of a second object, a RS in TCI information of asecond object, a RS in spatial relation information of a second object,or a PL RS of a second object; and the second object is associated withthe first object.
 7. The method according to claim 1, furthercomprising: determining at least one of the following as the RS of theneighboring cell: a RS in a list configured by a network device orreported by a terminal; or a measured RS of the neighboring cell.
 8. Themethod according to claim 7, wherein when multiple measured RSs exist inthe neighboring cell, the measured RSs of the neighboring cell meet atleast one of the following: the multiple measured RSs have the bestquality; the multiple measured RSs have the largest ID or the smallestID; the multiple measured RSs have the highest priority; or the multiplemeasured RSs are selected by the terminal or indicated by the networkdevice.
 9. The method according to claim 1, wherein the relatedinformation of the neighboring cell comprises at least one of thefollowing: an ID of the neighboring cell; ID-related information of theneighboring cell; or information indicating the neighboring cell. 10.The method according to claim 1, wherein the RS of the neighboring cellcomprises at least one of the following: an SSB, CSI-RS, or SRS.
 11. Themethod according to claim 1, wherein the determining a target RS as a RSof a neighboring cell is activated through signaling from a networkdevice.
 12. A communications device, comprising: a memory having acomputer program stored therein; and a processor, wherein the computerprogram, when is executed by the processor, causes the processor toperform a method for determining a reference signal, comprising:determining a target Reference Signal (RS) as a RS of a neighboring cellin a case that a first condition is met, wherein the first conditioncomprises at least one of the following: first information comprisesrelated information of the neighboring cell; or related configurationinformation of a first object comprises related information of theneighboring cell.
 13. The communications device according to claim 12,wherein the first information comprises at least one of Quasi-CoLocation(QCL) information and spatial relation information; and the target RScomprises at least one of the following: a RS in the QCL information ora RS in the spatial relation information.
 14. The communications deviceaccording to claim 12, wherein the first information is TransmissionConfiguration Indication (TCI) information; and the target RS is a RS inQCL information of the TCI information.
 15. The communications deviceaccording to claim 12, wherein the first object comprises at least oneof the following: a Physical Downlink Control Channel (PDCCH), aPhysical Downlink Shared Channel (PDSCH), a Synchronization Signal Block(SSB), a Channel State Information-Reference Signal (CSI-RS), a PhysicalUplink Control Channel (PUCCH), a Physical Uplink Shared Channel(PUSCH), or a channel Sounding Reference Signal (SRS); and the target RScomprises at least one of the following: a RS in QCL information of thefirst object, a RS in TCI information of the first object, or a RS inspatial relation information of the first object.
 16. The communicationsdevice according to claim 12, wherein the first object comprises atleast one of the following: a PUCCH, PUSCH, SRS, or Physical RandomAccess Channel (PRACH); or the target RS is a Path Loss calculationreference Reference Signal (PL RS) of the first object.
 17. Thecommunications device according to claim 12, wherein the first object isat least one of a target object set, wherein the target object setcomprises the following: a PDCCH, PDSCH, SSB, CSI-RS, PUCCH, PUSCH, SRS,or PRACH; and the target RS comprises at least one of the following: aRS in QCL information of a second object, a RS in TCI information of asecond object, a RS in spatial relation information of a second object,or a PL RS of a second object; and the second object is associated withthe first object.
 18. The communications device according to claim 1,wherein the related information of the neighboring cell comprises atleast one of the following: an ID of the neighboring cell; ID-relatedinformation of the neighboring cell; or information indicating theneighboring cell.
 19. The communications device according to claim 18,wherein the RS of the neighboring cell comprises at least one of thefollowing: an SSB, CSI-RS, or SRS.
 20. A non-transitory computerreadable storage medium, storing a computer program, wherein thecomputer program, when executed by a processor, causes the processor toperform a method for determining a reference signal, comprising:determining a target Reference Signal (RS) as a RS of a neighboring cellin a case that a first condition is met, wherein the first conditioncomprises at least one of the following: first information comprisesrelated information of the neighboring cell; or related configurationinformation of a first object comprises related information of theneighboring cell.